FSEE Startup and Shutdown Procedure

Below are numbered lists that give you an outline for how to startup and shutdown the FSEE beamline when useres need to access the FSEE area. This is based on the “Startup/Shutdown” tab on the FSEE Operator Phoebus page, as well as OPS Order 2023-24.

Opening FSEE Area

Stop beam with chopper and select “Beam not Ready” button

Insert faraday cups: D2569, D2490, D1102

Turn off E-Bends

Close gate valves: D2227, D2246, D2248, D2251, D2445, D2589

Open gate valve D2248 in accordance with the LLCS gate valve opening procedure

Change to Beam Inhibit Mode #4

Disable MPS monitoring of PPS RF Permit and PPS Beam Permit, and cycle MPS

Turn off LS1 LLRF and both MEBT bunchers

Turn off LS1 amplifiers and both MEBT bunchers

Turn Linac ACS key from Beam Permit to Search/Survey

Let users/FSEE Coordinator know tunnel is ready to enter

Restarting FSEE Operation

Wait for users/coordinator to secure the FSEE area and confirm with control room

Turn Linac ACS key from Search/Survey to Beam Permit

Turn on LS1 amplifiers and both MEBT buncher amplifiers

Turn on LS1 LLRF and both MEBT buncher LLRFs

Open gate valve D2245

Turn LLCS gate valve interlock bypass off

Open LLCS gate valves: D2227, D2246, D2251

Turn on E-Bends

Enable MPS monitoring of PPS RF Permit and PPS Beam Permit

Confirm flux and send to users

Links

OPS Order 2023-24, FSEE Startup/Shutdown